Method of and apparatus for laying up thread in cakes



July 15, 1930. w. H. FURNESS 1,770,397-

METHQD OF AND APPARATUS FOR LAYING UP THREAD IN CAKES 7 Filed D60. 12, 1927 INVENTOR 5 few/new ATTORNEYS:

Patented July 15, 1930 UNITED s 'ra'r szs PATENT OFFICE.

WILLIAM H. FURNESS, OF NATIONAL PARK, NEW JERSEY, ASSIGNOR TO CELLOCILK COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF DELAWARE METHOD OF AND APPARATUS FOR LAYING UP THREAD IN CAKES Application filed December 12, 1927. Serial No. 239,405.

This invention relates to the laying up of thread in what are known as cakes, and it is especiall useful in processes of making artificial silk or other threads which are subjected, during manufacture, to baths, such as washing baths.

The invention will be described as applied to artificial silk thread and to the washing operation for removing the acid .left on the thread as an incident to the decopping operation.

It is one of the primary objects of the'in- Vention to produce a1cake, the strands of thread of which are so disposed that all of the thread throughout its length will be substantially uniformly subjected to the washing medium. Stated in another way, I propose to produce a cake which is substantially uniformly pervious throughout, and in which the thread has a substantially uniform exposure to the bath throughout its length.

One manner of practicing my invention is illustrated more or less diagrammatically in the accompanying drawing, the figure of which is a side elevation of one form of apparatus suitable for carrying out the invention.

The method will be understood from the description of the apparatus shown in the drawing.

Referring to the drawing, the reference numeral 7 indicates a spool, preferably in the form of a relatively large, flanged cylinder adapted to carry a substantial yardage of thread without producing an unduly thick cake. There may be any number of these spools, two spools, of a battery being shown. The spindle portion 8 of the spool is preferably perforated as indicated.

The'thread which is to be wound on the spool, in this case is led from the acid bath (not shown) through the guide eyes 9 of the. .traverse bar 10, the spools being driven so that the thread will be wound thereon.

The traverse bar'is reciprocated by the cam 11 which rotates with the shaft 12 driven in any suitable manner. The reciprocation of the traverse bar moves the eyes 9 back and forth across the face of the spindle of the spools, so that the thread is laid on diagoin such a cake would not be uniformly exposed throughout its length and would not wash uniformly. 7

To make the cake substantially uniformly pervious throughout, the endthat the thread may be washed substantially uniformly throughout its length, I arrange that the 'stroke of the bar 10 shall be less than the length of'thespo'ol spindle, but that the traverse of thebar shall continuously shift first inone direction and then in the opposite direction. As one way of accomplishing this, Y

I spline the cam 11 to the shaft 12 and provide means for slowly reciprocatin the cam 11 on the shaft. For this purpose I have shown in the drawings an eccentric 13 which operates on the arm 14 engaging an end of the hub of the cam. The eccentric is mounted on the shaft 15, driven in any suitable way, as by Worm gearing 16, operated by a reduction drive 17 from the shaft 12.

The 0 erationof the apparatus is as follows. V ith the parts in the position shown the bar 10 is at the extreme right hand end of a stroke. As the cam rotates the bar 10 is moved to the left, the length of the stroke being indicated by the line ,X. The bar 10 then moves to the right, but because of the action of the eccentric the return stroke terminates just short of the position occupied by the eye 9 in the drawing. On the next stroke the bar moves a distance equal to-the length of the line X, such stroke terminating at a point slightly to the left of the end of the line X. Thus, while the stroke is constant, the eccentric shifts the traverse of the bar.

With each successive stroke this operation of shifting the traverse of the bar. is continued to the left until, on the final shift, the

stroke is indicated by the line marked Y.

The eccentric now operates'to gradually shift the traverse to the right until the stroke again coincides with the line marked X, and so on until the spool is filled.

The resultant cake, instead of being a sleeve with end walls extending in a plane at right angles to the axis of the spools, is of the shape indicated in the drawings, with the end portions tapering. The tapered end portions are composed of crossing strands just like the intermediate portions of the cake, in consequence of which these end portions are substantially equally as pervious as the intermediate portion, and all of the thread forming the tapered ends of the cake is exposed throughout its length to substantially thesame extent as the intermediate portion.

Thus, the thread is uniformly subjected to the washing medium. To facilitate passage of the washing medium through the cake, the spindle wall of the spool is perforated as above noted.

As illustrative, the parts may be so proportioned that a stroke in one direction is completed in about one turn of the thread on the spool, with the shift of the traverse from one extreme to the other in about eighty turns.

With such an arrangement, it is immaterial when any of the spools are started with respect to the others.

I claim 1. In combination, a rotating spool, a traverse member the stroke of which is less than the length of the spool spindle, and means for shifting the traverse of the bar first in one direction and then in the opposite direction longitudinally'of the spool, said means comprising a cam splined on a rotating shaft, said shaft and means for reciprocating the cam.

2. In combination, 'a rotating spool, a traverse member and means for reciprocating the traverse member througn a stroke of length less than the length of the spool spindle, said means including a cam and an actuaating mechanism therefor, together with means operating in timed relation to the cam movements for changing the position of the said stroke with respect to the spool spindle.

3. In combination, a rotating spool, a traverse member and means for reciprocating the traverse member through a stroke of length less than the length of the spool spindle, said means including a cam and an actuating mechanism therefor, together. with means for changing the position of the said stroke with respect to the spool spindle.

4:. In apparatus of the character described, a rotating spool, traverse means for feeding thread to the spool and an actuating mechanism for the traverse means including a shaft, a cam mounted on the shaft in a plane lying at an angle'to any plane which is perpendicularly disposed with respect to the shaft, an

operating connection between the cam and the traverse means and means for actuating the cam.

5. In apparatus of the character described, a rotating spool, traverse means for feeding thread to the spool and an actuating mechanism for the traverse means including a shaft, a cam mounted on the shaft in a plane lying at an angle to any plane which is perpendicularly disposed with respect to the shaft, an

operating connection between the cam and v the traverse means and means for rotating the cam, said cam and said connection being so configured and arranged that upon rotation of the cam the traverse means is reciprocated longitudinally of the spool through a stroke of length less than the length of the spool spindle.

7. In apparatus of the character described, a rotating spool, traverse means for feeding thread to the spool and an actuating mechanism for the traverse means including a shaft, a cam mounted on the shaft in a plane lying at an angle to any plane which is perpendicularly disposed with respect to the shaft, an operating connection between the cam and the traverse means and means for rotating the cam, said cam and said connection being so configured and arranged that upon rgtation of the cam the traverse means is reciprocated longitudinally of the spool through a stroke of length less than the length of the spool spindle, together with means for reciprocating the cam with respect to said shaft, whereby the stroke of the traverse means-is caused to shift back and forth over the said spool spindle.

8. In apparatus of the character described, a rotating spool, traverse means for feeding thread to the spool and an actuating mechanism for the traverse means including a shaft, a cam mounted on the shaft in a plane lying at an angle to any plane which is perpendicularly disposed with respect to the shaft, an operating connection between the cam and the traverse means and means for rotating the cam, said cam and said connection being so configured and arranged that upon rotation of the cam the traverse means is reciprocated longitudinally of the spool through a stroke of length less than the length of the spool spindle, together with means for reciprocating the cam with respect to said shaft, whereby the stroke of the traverse means is caused hereunto WILLIAM'H. FURNESS. 

